WATERPROOF CONDUCTIVITY
METER
CC- 411
USER’S MANUAL
Sp. j.
41-814 Zabrze, ul. Witosa 10, POLAND
tel. +48 32 / 273 8106, tel./fax +48 32 / 2738114
www.elmetron.com.pl
e-mail: info@elmetron.com.pl
WATERPROOF
CONDUCTIVITY METER
CC-411
USERS MANUAL
Before use, please read this instruction carefully!
-41. EXPLOITATION NOTICES
Dear User!
We present you a device distinguished by accuracy according to
the technical data and by a high stability of the displayed results.
We believe that the measurements will not cause you any trouble
and that the meter will operate without any inconvenience. Wide
range of additional functions requires careful reading of the
manual in other case some of the features may stay unused
or using the meter may cause you a troubles.
The employing of good-quality electrodes cells and probes, and
their replacing after a suitable time ensures obtaining of high
measuring parameters.
In case of conductivity measurements it is important to choose
the cell with right constant K value for the measuring range.
Wrong selection may cause larger error occur, similar situation
occurs during measurements with automatic temperature
compensation with incorrectly introduced  coefficient.
The essential feature of our products is their low failure
frequency. However if your meter will fail, our firm immediately
performs its warranty repair.
We wish
meter.
you a pleasant and trouble-free work with our
WARRANTY
The “ELMETRON” company gives 24 months of warranty
for the CC-411 conductivity meter number
.........................................
In case of damage the producer will repair the meter
within 14 days from the day of delivery.
The warranty doesn’t cover the damages caused by usage
not in conformity with the users manual, using wrong
power adapter, mechanical damages and damages caused
by repairs made by unauthorised persons.
NOTICE: Before sending the meter to us please contact the
firm by phone.
When sending the meter, the used cell, temperature probe and
power adapter should be also included.
Date of production...........................
Date of sale.....................................
Date of expiry..................................
Sp. j.
41-814 Zabrze - Grzybowice ul. Witosa 10
tel. (+48) 32 2738106, fax (+48) 32 2738114
POLAND
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Instrukcja obsługi konduktometru CC-411
CONTENTS
1. Exploitation notices
2. The characteristics of the meter
3. What is the meter designed for?
4. Outside view
5. Switching the meter ON and OFF
6. Basic information about conductivity measurement
7. Preparation to work
7.1. Choosing the kind of temperature compensation
8. Choice and maintenance of conductivity cell
8.1 Choice of the cell
8.2 Cell maintenance
9. Calibration
9.1 Calibration without the sample solution
9.2 Calibration with use of the sample solution
10. Conductivity measurement
10.1. Measurement without temp. compensation
10.2. Measurement with automatic temp. compens.
10.3. Measurement with manual temp. compens.
11. Temperature measurement
12. Power source and changing the battery
13. Technical Data
14. Equipment
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Instrukcja obsługi konduktometru CC-411
4
5
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11
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13
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15
15
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19
20
21
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23
24
-8-
-5-
The keyboard (pic. 2) placed under the display is used for
switching the meter on and off, choosing the measuring
function, calibration, entering the parameters.
2. THE CHARACTERISTICS OF THE METER
The keyboard has the keys as follows:
- to switch the meter on and off.
- conductivity measurement.
- longer pressing of this button enters the calibration
mode (CAL symbol displayed).
- temperature measurement.
,
- buttons used for entering the parameters
In upper wall of the meter there are inputs with below given
symbols:
F1 - BNC-50 for connecting the conductivity cell
t - Chinch input to connect the temperature probe
P - Power adapter input
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Instrukcja obsługi konduktometru CC-411
The conductivity meter CC-411 belongs to the newest generation
of measuring devices, the meter ensures high accuracy, stability
and repeatability of the readings. Two kinds of power source:
battery and power adapter enable work in field and long-lasting
measurements in the laboratory. The newest generation
electronic elements used in the meter made it’s memory
independent to power supply and have ensured very low power
consumption what greatly increases the operation time on 1
battery. The meter is equipped with large custom LCD display,
which enables observing of the conductivity or temperature
results. Waterproof housing makes working in difficult conditions
possible. Small size and weight make the meter very handy
especially during the field work.
Main features of the CC-411 are:
- high accuracy and stability of the reading;
- automatic and manual temperature compensation;
- calibration of the conductivity cell by introducing the constant K
or on sample solutions;
- function of determining the constant K of cell;
- storing of the parameters in non-volatile memory;
- cooperation with Pt-1000 temperature sensor;
- information about the battery condition;
- automatic switch off function.
-6-
-7-
3. . WHAT IS THE METER DESIGNED FOR
4. OUTSIDE VIEW.
Waterproof conductivity meter CC-411 is precise and easy to
use meter designed for measurements of: conductivity, in 
S/cm or mS/cm. The meter may be also used for accurate
temperature measurement of solutions and air in °C.
Waterproof housing enables work in difficult weather conditions
or in humid environment.
Conductivity CC-411 meter is being used in food, chemical,
pharmaceutical and energetical industries, in water treatment
stations, laboratories, agriculture, universities, scientific
laboratories etc.
The meter is prepared to work with conductivity cells, with wide
constant K range, equipped with BNC-50 connector. CC-411
co-operates with Pt-1000 temperature probe with Chinch
connector.
On the front wall of the meter there is a LCD display (pic. 1) on
which depending on the chosen function the result of the
conductivity or temperature measurement is displayed;
Choosing the function by pressing
or
buttons.
Symbols of the units are displayed by the results.
In case of disconnecting the temperature probe the meter
switches it self to manual temperature compensation mode. By
the conductivity result a blinking symbol will be displayed. If
the battery should be changed a
symbol is displayed. The
keyboard placed under the display is used for switching the
meter on and off, choosing the measuring function, calibration
and entering the parameters.
Pic. 1.
The CAL symbol on the left side of the display informs that the
meter is in calibration mode.
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Instrukcja obsługi konduktometru CC-411
- 12 -
-9-
7. PREPARATION TO WORK
Before starting the work one should :
- join the power adapter plug to the right input (P) if work with
the power adapter is planned;
- to BNC-50 input (F) join the right conductivity cell;
- in case of using the temperature probe connect it with the
chinch temperature input (t);
-
switch the meter on by pressing the
button.
7.1. Choosing the kind of temperature compensation
The meter switches it self to the automatic temperature
calibration mode automatically after joining the temperature
probe. The measurement will be compensated to the
temperature measured by the sensor.
In case of measurements without the temperature probe, after
disconnecting it the meter enters the manual temperature
compensation mode. By the conductivity measurement result a
blinking
symbol will appear and for the compensation the
value set by the user will be taken. Way of entering the
temperature is described below
7.1.1. Entering the
compensation
temperature
value
for
manual
To enter the temperature value for the manual temperature
compensation one should:
- disconnect the temperature probe;
- with
button chose the temperature measurement
function, the earlier set value will be displayed and beside it a
blinking symbol;
- with
,
buttons change it for the required value;
- return to the conductivity measuring mode by pressing the
button;
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Instrukcja obsługi konduktometru CC-411
Pic. 2.
- 10 -
- 11 -
5. SWITCHING THE METER ON AND OFF
6. BASIC INFORMATION ABOUT THE
CONDUCTIVITY MEASUREMENT
The meter is switched on by pressing the
button. The
meter tests the memory and display on which all symbols are
displayed.
Pic. 3.
If the test was successful, after about 1.5 s the meter switches
it self automatically to the measuring mode, in which it was
switched off. Displaying a
sign informs that the meter has
lost the manufacturer’s parameters what requires repair.
Continuous displaying of the test informs about loosing the
user’s calibration parameters.
After pressing the
button the meter will automatically
provide constant K of the cell K=1.000 cm-1 and will enter the
measuring mode. It is necessary to make the conductivity cell
calibration after this.
The meter is switched off by pressing the
button.
In case of working on the batteries to save them the meter
switches it self automatically off after 10 minutes from the last
pressing of any button. This function is switched off for the
time of calibration or working with the power adapter.
The conductivity measurement is based on applying a voltage with
proper frequency between two electrodes and measuring it. In the
CC-411 the frequency depends on the measuring range and may
vary from 100 Hz up to 10 kHz. Depending on the kind of the
measured liquid, it’s concentration and the temperature, the
voltage flow is easier or more difficult. The conductivity result
indirectly informs about the salts concentration in the measured
liquid. The greater is the salt concentration the bigger is the
conductivity (KCl, NaCl) This dependence doesn’t concern all of
the solutions. In some cases after exceeding some salinity value
the conductivity starts decreasing. The temperature has also a
great influence on the results of a conductivity measurement which
increases together with the temperature growth.
The electrode’s surface and the distance between them have
decisive influence on the so called constant K value of the cell.
This value has a great influence on the accuracy of the
measurement. Depending on the measured conductivity value
cells with constant K = 0,1 cm-.1 up to 10 cm-.1 are used. During
the measurement the meter multiplies the measured value by the
constant K introduced to the meters memory and displays the
result in units of conductivity (μS/cm or mS/cm). By the result a
shortened symbol of the unit is displayed (μS or mS). The
conductivity is changing together with temperature and salts
concentration. To make the comparing of the results possible the
measured value is counted by the meter to the value which
responds to measurement in 25 0C. Measurement in this
temperature is most accurate. In other temperatures there is so
called temperature compensation used, this means that there are
some counting made by the meter which take the actual
measured temperature and  coefficient under the consideration.
This coefficient describes how much will the result change when
the temperature will change for 1 0C. The  coefficient in this
meter is constant and is 2% / oC. This is the value closest to
this which have most of the salts in 25°C temperature. It must be
remembered that the most accurate measurements are obtained
in 25°C temperature. The conductivity, despite the electronic
precision, should always be treated as burdened with some
error, which depends on the error of conductivity cell (it’s
linearity), temperature and first of all depending on the 
coefficient during measurements in temperatures different
than 25 0C.
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Instrukcja obsługi konduktometru CC-411
- 13 -
- 16 9.2.1. Calibration without the temperature compensation
The accurate calibration should be done without the temperature
compensation. The sample solution should be brought to 25°C.
During controlling it is possible to use the temperature probe.
What should be done::
connect the conductivity cell and temperature probe to the
meter;
immerse both probes in the sample solution, hold the
conductivity cell at least 1 cm away from the bottom and
walls of the vessel. The measuring cell should be completely
filled with the measured solution, there shouldn’t be any air
bubbles and the electrodes should be evenly moistened*;
- measure the temperature of solution and bring it to 25 oC;
-
press and hold the
the CAL symbol.
-
with
,
buttons bring the displayed value to the
known value of the used sample solution;
-
button till displaying on the screen
return to the measuring mode by pressing the
8. CHOICE AND MAINTENANCE OF THE CONDUCTIVITY
CELL
8.1. The cell choice
The conductivity measuring range in CC-411 meter is 0 – 200
mS/cm. The meter co-operates with conductivity cells with
constant K = 0.05 ÷ 1.50 cm-1 and BNC-50 connector.
Depending on the required measuring range it is necessary to
choose the right cell with constant K which enables receiving
correct results. Beyond the range the cell looses it’s linearity and
the results have greater error. Accurate measurements in the
whole range are possible with use of 3 different conductivity
cells.
Depending on the expected measuring range one may choose
the correct cell using the chart below.
button.
Pic. 4.
Pic. 6.
The meter is calibrated and ready to work.
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Instrukcja obsługi konduktometru CC-411
Dependence between the measuring range and constant K
of the used conductivity cells.
- 14 8.2. The conductivity cell maintenance
To receive stable results it is advised to store the cell for few
hours before the measurement in water, especially this is
required in case of distilled water measurements.
The conductivity probe maintenance mainly consists of
accurate washing the inside of the measuring cell with distilled
water. It is forbidden to clean the platinum electrodes
mechanically, because the platinum layer may be rub of, what
will result in decreasing the accuracy, may cause lowering the
stability and change the constant K.
Measurements of liquids with oils and heavy sediments
content may cause platinum contamination, make the
measurement impossible and irreparably damage the
electrodes. In case of fat content in the measured liquids it is
possible to clean the electrodes by immersing the cell in
acetone, chloroform, fourhydrofurane or detergent.
Some norms propose universal liquid for cleaning the cells.
This is mixture of equal parts of isopropyl alcohol, ethyl ether
and hydrocholic acid, diluted with water in 1:1 ratio.
The conductivity probe with broken measuring cell can’t be
used for further measurements because the constant K is
greatly changed, the result is unstable and the influence of
placing the cell in measuring vessel greatly changes the result.
9. CALIBRATION
The calibration is done to prepare the meter for cooperation with
the used conductivity probe, this is the essential condition for
obtaining accurate results. The calibration may be done without
the sample solution (by entering to the meter’s memory known
value of the constant K of cell) or with use of standard solution
with known conductivity. Constant K of the conductivity cell may
change as reaction to contamination of the electrodes, that’s why
periodically it is necessary to check the meters indications on the
sample solution and eventually repeat the calibration.
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Instrukcja obsługi konduktometru CC-411
- 15 9.1. Calibration without the sample solution
The meter has the possibility of calibration without the use of
sample solution. To make this calibration it is necessary to know
the constant K of the conductivity probe. This value may be given
by the cell producer or may be determined using the CC-411 meter
after making the calibration in the sample solution.
To make the calibration one should:
- in the measuring mode simultaneously press the
,
buttons till displaying on the screen with the k and CAL
symbols and the value of the earlier introduced constant K
- with
,
buttons enter the value of constant K;
- return to the measuring mode by pressing the
button.
Pic. 5.
9.2. Calibration with use of sample solution
The meter enables one point calibration in the freely chosen
sample solution. To decrease the error it is recommended to use
solutions with value close to the forecasted value of
measurement. It is required to use high quality sample solutions.
- 20 10.3. Conductivity
measurement
temperature compensation
- 17 -
with
manual
The measurement with manual temperature compensation may
be done in stable work conditions, ex. during measurements in
laboratory, especially with use of thermostat, or in case of the
temperature probe damage. Disconnecting the temperature probe
switches the meter to manual temperature compensation.
In case of measurement with manual temperature compensation
one should:
connect the conductivity probe to the F1 connector (pic. 2);
-
-
turn the meter on with
button.
if the conductivity cell wasn’t calibrated earlier make the
calibration according to chapter 9;
measure the temperature of the solution
enter the measured temperature value for manual
compensation according to chapter 7.1.1.
Place the cell in the measured solution, it can’t touch the walls
and bottom. The measuring cell should be completely filled
with the sample solution and shouldn’t include any air bubbles,
the electrode’s surface should be evenly moistened*;
after the stabilisation read the result (pic. 10).
9.2.2. Calibration with manual temperature compensation
To calibrate the meter it is necessary to:
-
-
turn the meter on with the
button;
disconnect the temperature probe
enter the 25°C value for manual temperature compensation
according to point 7.1.1.
immerse the conductivity cell in the sample solution and hold it
at least 1cm away from the bottom and walls of the vessel.
The measuring cell should be completely filled with the sample
solution and shouldn’t include any air bubbles, the electrode’s
surface should be evenly moistened*;
with lab thermometer measure the temperature of the sample
solution and bring it to 25 oC;
-
press and hold the
on the display (Pic. 7).
button till the CAL symbol will appear
-
With
,
buttons bring the displayed value to the value
of used sample solution.
-
exit the calibration mode by pressing the
button.
Pic. 7.
Pic. 10.
* - air bubbles may be removed by moving the immersed cell. To make the
moistening of the electrodes easier it is recommended to immerse the cell
in distilled water with washing-up liquid, and than wash it in distilled water.
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Instrukcja obsługi konduktometru CC-411
The meter is calibrated and ready to work.
* - air bubbles may be removed by moving the immersed cell. To make the
moistening of the electrodes easier it is recommended to immerse the cell
in distilled water with washing-up liquid, and than wash it in distilled water.
- 18 10. THE CONDUCTIVITY MEASUREMENT
10.1. The conductivity measurement without temperature
compensation
An accurate conductivity measurement should be done without the
temperature compensation. The measured solution should be
brought to temperature of 25 oC. During the control it is possible to
use the temperature probe.
One should:
- connect the conductivity and temperature probes to the right
connectors F1 and t (pic. 2);
- turn the meter on with
button.
- if the conductivity cell wasn’t calibrated earlier make the
calibration according to chapter 9;
- Place both probes in the measured solution, the conductivity
cell can’t touch the walls and bottom. The measuring cell
should be completely filled with the sample solution and
shouldn’t include any air bubbles, the electrode’s surface
should be evenly moistened*;
- bring the temperature of the measured solution to 25 oC.
- read the result after it’s stabilisation (pic. 8).
- 19 10.2. Conductivity measurement with automatic temperature
compensation
In case of measurement with automatic temperature compensation
one should:
- connect the conductivity and temperature probes to the right
connectors F1 and t (pic. 2);
- turn the meter on with
button.
- if the conductivity cell wasn’t calibrated earlier make the
calibration according to chapter 9;
- Place both probes in the measured solution, the conductivity
cell can’t touch the walls and bottom. The measuring cell
should be completely filled with the sample solution and
shouldn’t include any air bubbles, the electrode’s surface
should be evenly moistened*;
- wait till the stabilisation and read the result (pic. 9).
Pic. 9.
Pic. 8.
Notice: in case of exceeding the value of temperature taken during
compensation into consideration the result starts blinking although
the conductivity measuring range wasn’t exceeded.
If near the value a blinking oC symbol is displayed it informs that
the temperature probe is broken.
* - air bubbles may be removed by moving the immersed cell. To make the
* - air bubbles may be removed by moving the immersed cell. To make the
moistening of the electrodes easier it is recommended to immerse the cell
in distilled water with washing-up liquid, and than wash it in distilled water.
moistening of the electrodes easier it is recommended to immerse the cell
in distilled water with washing-up liquid, and than wash it in distilled water.
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Instrukcja obsługi konduktometru CC-411
- 24 -
- 21-
14. EQUIPMENT
11. TEMPERATURE MEASUREMENT
The standard set includes:
1. Conductivity cell
2. Temperature probe Pt-1000B (standard);
3. Plastic container for meter, cell and temperature probe;
4. User’s manual with warranty.
As the extra equipment one may order:
1. power adapter 12V
2. temperature probe Pt1000 1/3B – higher accuracy
The temperature measurement is done as follows:
- to the Chinch connector connect the temperature probe;
- by pressing the
button switch the meter on;
- put the temperature probe to the measured solution;
- wait till the stabilisation of the value and read the result.
The meter co-operates with the PT-1000 probe. Depending on
its class the accuracy of the measurement changes.
Pic.11.
The meter co-operates with platinum resistor sensor PT-1000
and the final accuracy of the temperature measurement
depends on it’s class.
NOTICE: break in the circuit of the temperature probe is
signalised by blinking result even if the displayed value is not
exceeding the result. Blinking -50°C value during
measurement in positive temperatures informs about short
circuit in the temperature probe.
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Instrukcja obsługi konduktometru CC-411
- 23 –
- 22 12. POWER SOURCE AND CHANGING THE BATTERY
The meter is 9V battery or stabilised power adapter powered.
The adapter should be joined with the right connector in the
meter (P pic. 2). Joining the power adapter disconnects the
battery.
Displaying the
symbol informs that the battery should be
changed. To do this it is necessary to unscrew the two screws
in the lower wall of the meter pull out the whole wall and
replace the battery.
The next thing is to put the battery back into the meter and
mount the wall.
The wall on the edge has a sealing ring. It is very important to
pay attention, during closing the meter, if the ring on the whole
edge was put inside the housing. If it is correct screw the
screws till feeling the resistance (not to hard). Leaving the wall
not correctly screwed causes loosing the waterproofnes and
may cause flooding the meter and it’s destroying. This kind of
failure is not repaired on the warranty conditions.
13. TECHNICAL DATA
CONDUCTIVITY MEASUREMENT:
ranges
resolution
0.000 ÷ 199.9 S/cm
200  1999 S/cm
2.00  19.99 mS/cm
20.0  200.0 mS/cm
0.1 S/cm
1 S/cm
0.01 mS/cm
0.1 mS/cm
accuracy *
(±1 digit)
±0.25 %
±0.25 %
±0.25 %
±0.25 %
Frequency
200 Hz
1 kHz
5 kHz
10 kHz
* Accuracy given for the end value of the range.
Ranges of frequency changes were given for constant K = 1. For other values
of the constant K the values will change proportionally to changes of this
constant.
Temperature compensation:
manual/automatic
Compensation range:
-5.0 ÷ 70.0 oC
Constant K range
0.05  1.500 cm-1
α coefficient
constant 2 %/ oC
Cell calibration:
one point
1. by introducing the constant K of cell
2. with use of calibration solution
TEMPERATURE MEASUREMENT:
range
resolution
accuracy*
(±1 digit)
- 50.0 ÷ 199.9 oC
0.1 oC
0.1 oC
* accuracy of the meter. Final accuracy of the measurement depends on the
accuracy of the used PT-1000 probe
TEMPERATURE PROBE:
platinum resistor Pt-1000
ACCURACY OF THE PROBE IN RANGE:
FOR PT1000B RESISTOR:
FOR PT10001/3B RESISTOR:
0 ÷ 100 0C:
±0.8 0C
±0.3 0C
OTHER:
WORKING TEMPERATURE:
POWER:
POWER CONSUMPTION:
SCREEN:
DIMENSIONS:
WEIGHT:
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Instrukcja obsługi konduktometru CC-411
-5 ÷ 45 oC
1. 9V battery type 6F22
2. power adapter 12V
60 mW
Custom LCD 55 x 45 mm
149 x 82 x 22 mm
222 g ( with battery)